<!DOCTYPE html>
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
	<title>Promise核心</title>
	<style type="text/css">
	body {
      padding: 30px;
    }
  
    </style>
</head>
<body>
	<div id="hd"></div>
	<div id="hd2"></div>
	<script src="test2.js"></script>
	<script type="text/javascript">
	</script>
</body>
</html>